Toolbar issue on MacOS Ventura

I think the problem is with 3rd party application frameworks that failed to keep up with Apple’s graphics API’s. Apps built using those frameworks were relying on interfaces deprecated years ago and now dropped from Ventura. Many GUI applications, not just ESA SNAP, suffer from this. Apple has a history of such “problems”, but overall many of the deprecated interfaces had weak security, so in general you are better off

There are options to install older macOS versions or linux in a VM if you can tolerate the performance
hit for your use cases. Getting these to work is not assured, and may not be a trivial exercise. ESA plans to fix SNAP, but other use cases rely on software that is no longer maintained, so if you want to try one of the VM approaches you should look for reports for similar efforts to enable legacy apps.
Consider using:

Apple: Running Linux in a Virtual Machine seems to support x86_64 linux.

GetUTM App is based on QEMU and says: lower performance emulation is available to run x86/x64 on Apple Silicon.